Hamid Ullah, Abbas Masood, Mujahid Aslam, Shakeel Ahmad, Asfandyar Khan, and Muhammad Naeem, “ACUTE UPPER GASTROINTESTINAL BLEED: ETIOLOGICAL SPECTRUM IN A TERTIARY CARE HOSPITAL OF NORTH WEST REGION OF PAKISTAN”, J Popl Ther Clin Pharmacol, vol. 29, no. 02, pp. 393–396, Apr. 2022, doi: 10.53555/jptcp.v29i02.4574.